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  <title>Boost Tokenizer Class</title>
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  <p><img src="../../../boost.png" alt="C++ Boost" width="277" height=
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  <h1 align="center">Tokenizer Class</h1>
  <pre>  template &lt;
        class TokenizerFunc = char_delimiters_separator&lt;char&gt;, 
        class Iterator = std::string::const_iterator,
        class Type = std::string
  &gt;
  class tokenizer
</pre>

  <p>The tokenizer class provides a container view of a series of tokens
  contained in a sequence. You set the sequence to parse and the
  TokenizerFunction to use to parse the sequence either upon construction or
  using the assign member function. Note: No parsing is actually done upon
  construction. Parsing is done on demand as the tokens are accessed via the
  iterator provided by begin.</p>

  <h2>Example</h2>
  <pre>// simple_example_1.cpp
#include&lt;iostream&gt;
#include&lt;boost/tokenizer.hpp&gt;
#include&lt;string&gt;

int main(){
   using namespace std;
   using namespace boost;
   string s = "This is,  a test";
   tokenizer&lt;&gt; tok(s);
   for(tokenizer&lt;&gt;::iterator beg=tok.begin(); beg!=tok.end();++beg){
       cout &lt;&lt; *beg &lt;&lt; "\n";
   }
}
</pre>

  <p>The output from simple_example_1 is:</p>

  <blockquote>

  <p><code>This<br>
  is<br>
  a<br>
  test</code></p>

  </blockquote>

  <h3>Template Parameters</h3>

  <table border="1" summary="">
    <tr>
      <th>Parameter</th>

      <th>Description</th>
    </tr>

    <tr>
      <td><tt>TokenizerFunc</tt></td>

      <td>The TokenizerFunction used to parse the sequence.</td>
    </tr>

    <tr>
      <td><tt>Iterator</tt></td>

      <td>The type of the iterator the specifies the sequence.</td>
    </tr>

    <tr>
      <td><tt>Type</tt></td>

      <td>The type of the token, typically string.</td>
    </tr>
  </table>

  <p>&nbsp;</p>

  <h2>Related Types</h2>

  <table border="1" summary="">
    <tr>
      <td>
        <p align="center"><strong>Type</strong></p>
      </td>

      <td>
        <p align="center"><strong>Remarks</strong></p>
      </td>
    </tr>

    <tr>
      <td>iterator</td>

      <td>The type returned by begin and end. Note: the category of iterator
      will be at most ForwardIterator. It will be InputIterator if the
      Iterator template parameter is an InputIterator. For any other
      category, it will be ForwardIterator.</td>
    </tr>

    <tr>
      <td>const_iterator</td>

      <td>Same type as iterator.</td>
    </tr>

    <tr>
      <td>value_type</td>

      <td>Same type as the template parameter Type</td>
    </tr>

    <tr>
      <td>reference</td>

      <td>Same type as value_type&amp;</td>
    </tr>

    <tr>
      <td>const_reference</td>

      <td>Same type as const reference</td>
    </tr>

    <tr>
      <td>pointer</td>

      <td>Same type as value_type*</td>
    </tr>

    <tr>
      <td>const_pointer</td>

      <td>Same type as const pointer</td>
    </tr>

    <tr>
      <td>size_type</td>

      <td>void</td>
    </tr>

    <tr>
      <td>difference_type</td>

      <td>void</td>
    </tr>
  </table>

  <p>&nbsp;</p>

  <h2>Construction and Member Functions</h2>
  <pre>tokenizer(Iterator first, Iterator last,const TokenizerFunc&amp; f = TokenizerFunc()) 

template&lt;class Container&gt;
tokenizer(const Container&amp; c,const TokenizerFunc&amp; f = TokenizerFunc())

void assign(Iterator first, Iterator last)

void assign(Iterator first, Iterator last, const TokenizerFunc&amp; f)

template&lt;class Container&gt;
void assign(const Container&amp; c)

template&lt;class Container&gt;
void assign(const Container&amp; c, const TokenizerFunc&amp; f)

iterator begin() const 

iterator end() const
</pre>

  <table border="1" summary="">
    <tr>
      <td>
        <p align="center"><strong>Parameter</strong></p>
      </td>

      <td>
        <p align="center"><strong>Description</strong></p>
      </td>
    </tr>

    <tr>
      <td>c</td>

      <td>A container that contains the sequence to parse. Note: c.begin()
      and c.end() must be convertible to the template parameter
      Iterator.</td>
    </tr>

    <tr>
      <td>f</td>

      <td>A functor that is a model of TokenizerFunction that will be used to
      parse the sequence.</td>
    </tr>

    <tr>
      <td>first</td>

      <td>The iterator that represents the beginning position in the sequence
      to be parsed.</td>
    </tr>

    <tr>
      <td>last</td>

      <td>The iterator that represents the past the end position in the
      sequence to be parsed.</td>
    </tr>
  </table>

  <p>&nbsp;</p>
  <hr>

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  <p>Revised 
  <!--webbot bot="Timestamp" s-type="EDITED" s-format="%d %B, %Y" startspan -->16 February, 2008<!--webbot bot="Timestamp" endspan i-checksum="40414" --></p>

  <p><i>Copyright &copy; 2001 John R. Bandela</i></p>

  <p><i>Distributed under the Boost Software License, Version 1.0. (See
  accompanying file <a href="../../LICENSE_1_0.txt">LICENSE_1_0.txt</a> or
  copy at <a href=
  "http://www.boost.org/LICENSE_1_0.txt">http://www.boost.org/LICENSE_1_0.txt</a>)</i></p>
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